bitops: introduce CONFIG_GENERIC_FIND_BIT_LE (0664996b) · Commits · 戴 / test

This introduces CONFIG_GENERIC_FIND_BIT_LE to tell whether to use generic implementation of find_*_bit_le() in lib/find_next_bit.c or not. For now we select CONFIG_GENERIC_FIND_BIT_LE for all architectures which enable CONFIG_GENERIC_FIND_NEXT_BIT. But m68knommu wants to define own faster find_next_zero_bit_le() and continues using generic find_next_{,zero_}bit(). (CONFIG_GENERIC_FIND_NEXT_BIT and !CONFIG_GENERIC_FIND_BIT_LE) Signed-off-by:

Akinobu Mita <akinobu.mita@gmail.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by:

Andrew Morton <akpm@linux-foundation.org> Signed-off-by:

Linus Torvalds <torvalds@linux-foundation.org>

arch/frv/Kconfig

+4 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,10 @@ config GENERIC_FIND_NEXT_BIT
		bool
		default y

		config GENERIC_FIND_BIT_LE
		bool
		default y

		config GENERIC_HWEIGHT
		bool
		default y

arch/h8300/Kconfig

+4 −0

Original line number	Diff line number	Diff line
		@@ -45,6 +45,10 @@ config GENERIC_FIND_NEXT_BIT
		bool
		default y

		config GENERIC_FIND_BIT_LE
		bool
		default y

		config GENERIC_HWEIGHT
		bool
		default y

arch/m32r/Kconfig

+4 −0

Original line number	Diff line number	Diff line
		@@ -260,6 +260,10 @@ config GENERIC_FIND_NEXT_BIT
		bool
		default y

		config GENERIC_FIND_BIT_LE
		bool
		default y

		config GENERIC_HWEIGHT
		bool
		default y

arch/m68knommu/Kconfig

+4 −0

Original line number	Diff line number	Diff line
		@@ -42,6 +42,10 @@ config GENERIC_FIND_NEXT_BIT
		bool
		default y

		config GENERIC_FIND_BIT_LE
		bool
		default y

		config GENERIC_GPIO
		bool
		default n

arch/microblaze/Kconfig

+3 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,9 @@ config ARCH_HAS_ILOG2_U64
		config GENERIC_FIND_NEXT_BIT
		def_bool y

		config GENERIC_FIND_BIT_LE
		def_bool y

		config GENERIC_HWEIGHT
		def_bool y

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